What are the classifications of passenger elevators?

Release time：2023/4/24   Click ：

According to the driving method, AC elevators are classified as elevators that use AC induction motors as the driving force. According to the dragging method, it can be further divided into AC single speed, AC double speed, AC voltage regulation speed regulation, AC variable voltage frequency regulation speed regulation, etc. DC elevator: An elevator that uses a DC motor as the driving force. The rated speed of this type of elevator is generally above 2.00m/s. Hydraulic elevator: Generally, an electric pump is used to drive the flow of liquid, and a plunger is used to lift the car. Gear and rack elevator: an elevator that processes the guide rail into a rack, and installs gears that mesh with the rack in the car. The electric motor drives the gears to rotate and lift the car. Screw elevator: An elevator that processes the plunger of a straight top elevator into rectangular threads, and then installs a large nut with thrust bearing on the top of the oil cylinder. The nut is then driven to rotate by a motor through a reducer (or belt), thereby causing the screw to lift the elevator car up or down. The power source of an elevator driven by a linear motor is a linear motor. In the early days of the elevator, steam engine and internal combustion engine were used as power to directly drive the elevator, but now there is almost no elevator. Electric motors are classified by speed through reducers. There is no strict speed classification for elevators, and it is customary in China to classify them according to the following method. Low speed elevator: often refers to an elevator with a speed lower than 1.00m/s. Medium speed elevator: often refers to an elevator with a speed between 1.00 and 2.00m/s. High speed elevator: often refers to an elevator with a speed greater than 7m/s.



What should I pay attention to when purchasing a passenger elevator?



At the same time, when choosing the brand of elevator, the following major issues need to be noted:



1. Confirmation of elevator type:



At the beginning of building planning, the purpose of the building should be clearly defined, as the types of elevators used in buildings with different purposes such as hotels, restaurants, office buildings, hospitals, residential buildings, or industrial and mining enterprises often vary greatly. After determining the purpose of the building, a passenger flow analysis is conducted based on factors such as its building area, floor height, passenger flow in and out, and the location of the elevator in the building, in order to determine the elevator speed, load capacity (load when the elevator car is fully loaded), and the required number of elevators



2. Drawing of elevator civil engineering drawings:



After determining the type, speed, load capacity, number of units, number of stopping stations, and total travel height of the elevator, the architectural design department can be entrusted to design the blueprint. Here, it is necessary to clarify the relevant civil engineering (mainly elevator shaft) parts of the elevator. The design department should provide standard civil engineering drawings of the same type from the elevator manufacturer, and combine different structures of the elevator shaft in the building, such as brick structure, concrete structure, etc Draw elevator civil engineering drawings for brick concrete structures or steel skeleton structures.